Pit tub, wagon, and the like



April 12 9 1927.

, 1,624,700 A. WEDDELL ar' AL I PIT TUB, WAGON, AND .PH E LIKE Filed 00 2. 1926 3 Sheets-Sheet 1 April 12 1927.

A. WEDDELL ET AL PIT IUB, WAGQIN, AND THE LIKE Filed Oct. 2. 1926 3 Sheets-Sheet 3 2 W m g g Z; w 2,.

A ril 1 2 ,1927.

1,624,700 A. WEDDELL ET AL PIT TUB, wAeoxi, AND THE LIKE g 1926 3 sheets -sheet :5

7 inwardly to form all round said bottom an Patented Apr. 12,1927.

PATENT v oFFIcs. 1

'- ALBERT WEDDELL AND WILLIAM THOMAS TOLHU'RST, OF TLPTON, ENGLAND."

PIT TUB, WAGON, AND THELIKE.

Application filed October 2, 1926, Serial No. 129,215, an d in Great Britain October 27, 1925.

The invent on relates to pit tubs and wagons and the like, and distinctly to the construction of the bodies thereof, and provides the hereinafter described and claimed improvements therein.

The body of such a ,vehicle is sometimes built, up of a separately constructed. bottom, separately constructed opposite sides, and separately constructed opposite ends, rigidly riveted together. body generally inuse, the one known as flat bottomed, which is usually'mounted upona separate under-frame, and the other. known as well-bottomed, and having applied to its ends buffer beams. 1

, According to the invention the boundary edge of the bottom is turned upwardly and upper and inner hook edgeof substantially U cross-section. The lower horizontal edges offthe opposite sides and ends are also formed'with outwardly turned hook sections to engage the hook formations of the bottom by horizontal movement outwardly. The vertical'edges of the rigidly built sides and ends also have corresponding hook vformations adapted to'bejput into engagement by a horizontal movement outwardly, that isgto say, the vertical edges of the ends for their full depth have, hook formations to engage corresponding hook formations for the full depth of the vertical edges of thesides. The

bottom is first placedin position,,n ext the ends are app-lied to thebottom, and afterwards the sides are applied to both ends and.

bottom, all with hook engagements made by outward horizontal movement only, which is the essential feature of the invention, providing a simplified constructionv and en 0;

abling assemblyand disassembly to be carried out. easily and quickly. All hook engagements, aforesaid, are secured against outward displacement, the load placed within the body assisting, but said engagements are subsequently secured by mechanical means such as clamping cleats or straps,'or other means, as will behereinafter particularly referred to.

The sides. may be applied to the bottom before the ends which are then applied to both sides and bottom with the same distinctive feature, hook engagements made by horizontal movement only.

The manufacturing process of forming the hook joints in the component parts of the tub body is very simple and inexpensive,

There are two types ofwhile if a hook jointis damaged while the tub bodyis in use there is only a very short horizontal movementrequired to disengage the componentsides, ends and bot tom from each other, so that the damage canbe readily rectified by the use of simple handtools. 1

Buffer beams are applied to the ends of the body in -the well-bottomedtype of tub or wagon and it is preferable to construct such butter beams in accordancewith prior British Letters Patent No. 222,705.

Desirable forms of theinvention are represented by the. accompanying sheets of draw ngs, Figsali to 5 showing one arrangementand Figs. 6 to 8 a further arrangement. 1th reference to Figs. 1 to 5 1 Fig. .1 is alongitudinal vertical broken sectionof the body assembled.

. Fig. 2 is a plan of Fig. 1. i i a h Fig. 3 is a similar plan but with the parts disassembled.

Fig. 4 shows in vertical section the bottom andtwo-ends disassembled.

',Fig'. 5 shows in plan two connected angle straps to secure the hook engagements,

The body of the tub or wagon is built up of separately constructedbottom a, separatelyconstructed sides 0 and d, and separately constructed ends 6 and f., The bottom a is flat, and its boundary edge is turned upwardly and int-vardly to form all round said bottom an upperh'ook edge a of substantially U cross-sectional shape, the corners being divided or slitted, at a in the web ofthe hook for convenience.- The lower horizontal edge and the vertical edges of each side 0 and d,

and each end e and j", are shaped into hook cross-sections. Each end has inturned vertical edge hooks g, 9?, of U cross-section,- and its lower and horizontal edge is turned inwardly and then outwardly into an outward-H ly opening hook g of U cross-section. Each side has its vertical edge first turned inwardly and then outwardly into a hook g of U cross'-section, and its bottom horizontal edge first turned inwardly and then turned outwardly into a hook g of U cross-section,

the same as the hooks 9 the specific shaping of the hooks being dependent upon whether the ends 6, and f; are applied to the bottom a prior to the sides,;or the sides applied prior to the ends. It will be clear from the drawings that the hooks of the adjacent vertical edges of the sides and ends correspond, and that the hooks of the lower horizontal edges of the sides and ends correspond to the hook edges a of the bottom a. On building up the body the bottom a is first putinto position, and then the opposite ends e and f are made to engage the-bottom, after which the opposite sides 0 and d are made to engage the bottom and both the ends, all engagements by horizontal move ment only outwardly and immediately and wholly.

There is therefore an inter-locking engagement of all the hooks which the load in the tub or wagon always tends to maintain, but such engagements are mechanically secured by the application of cleats or clamping straps which lie over or against the hook joints to hold them securely in engagement and are bolted tothe sides, ends and bottom.

The engagements aforesaid are mechanically held by various devices. In Figs. 1 and 2 7t are'the heads of bolts applied to the bottom a to hold the hook engagements atthe corners behind the backs of the hooks, while i are angle straps holding the engagements high'up by riveting and bolting to the sides and ends and fitting against the hook engagements by shapings, while are corner cleats applied low down to overlie the hook engagements and be bolted to the bottom a. Fig. 5 shows how two angle straps may be connected by a bar, 71 secured to one of the sides to become a. permanent part thereof. 7

From the foregoing it will be clear that the bottom ends and sides can be very quickly and most effectively assembled and disassembled, the latter of particular advantage in the case of accident in a mine when tubs frequently have to be entirely taken to pieces to clear a roadway.

It will also be obvious that the hook formations according to the invention are convenient for production, having in view the particular horizontal engagements by which they are put'together.

Figs. 6 to 8 show a form of invention aforesaid carried out in a well-bottomed tub.

Fig. 6 is a plan of the bottom with a buffer beam applied.

Fig. 7 is a perspective View of a portion showing the bottom, a side and an end, and a buffer beam engaging.

Fig. 8 is a perspective view of a portion of the bottom only.

Said bottom a is formed with the usual well a", but across the well the hook edges a at the boundary are cut away, as clearly shown by Fig. 8.

a in manner aforesaid, with reference to Figs. 1 to f, but it will be clear from the drawings of this. arrangement that the hook edge 9 of the end also engages the upper assistanceof a U shaped plate at, and abut ting against the end edges of the well, as represented at w". i

The buffer beam is a hollow structure as clearly represented in Figs. 6 and 7, and its heads :0 contain bufi'er blocks applied in ac J cordance with the patent cited.

The form of the invention Figs. 6 to 8 is incorporated to show how the invention Figs. 1 to 4 can be applied to a well-bottomed tub, and how the buffer beam of the prior patent is applied to this form of the invention.

Having now described our invention and in what manner the same is to be performed, we declare that what we claim is 1. A pit-tub, wagon or like body combining a bottom having boundary edge hook formations turned inwardly, opposite sides having vertical edge and lower horizontal edge hook formations, opposite ends having vertical edge and lower horizontal edgehook formations, the vertical edge hook formations of the sides and ends to correspond, and the horizontal edge hook formations to correspond to the boundary edge hook formationsof the bottom, the whole of the hook formations being put into engagement by horizontal movement outwardly of the sides and ends, and devices for subsequently securing said engagements, substantially as described.

2. A pit-tub, wagon'or like body combining a bottom having boundary side and end edges turned inwardly, opposite sides having vertical edge and lower horizontal edge hook formations turned inwardly and then outwardly, opposite ends having vertical in wardly turned edge hook formations and lower horizontal edge inwardly and outwardly turned hook formations, the vertical edge hook formations of the sides and ends to engage, and the horizontal edge hook formations to engage the boundary edge hook formations of the bottom, the whole of the hook formations being put'into engagement by horizontal movement outwardly of the sides and ends in relation to the bottom, and upper and lower mechanical devices for securing the engagements of the sides and. ends to each other and to the bottom, substantially as described.

3. A pit-tub, wagon or like body combin-. ing a bottom having boundary edge hook formations turned inwardly and a central well formatiomthebufferbeam secured to .131)

- the bottom at each end of the ivell formation,

edge hook formations of the sides and ends to correspond, and the horizontal'edge hook formations to correspond to the boundary edge formations of the bottom, the whole of 10 the hook formations being put into engagement with each other and With the buffer beams by horizontal movement outwardly of the sides and ends, and devices for subsequently securing said engagements, substantially as described. I

In testimony whereof We have signed our names to this specification.

ALBERT WEDDELL.

WILLIAM THOMAS TOLI-IURST. 

